*{
    margin: 0;
    padding: 0;
}
body{
    background-color: #5722ab;
    overflow: hidden;
    .foot{
        width: 100%;
        background-color: #fff;
        height: 1.08rem;
        display: flex;
        font-size: .21rem;
        position:sticky;
        bottom: 0;
        .item{
            flex: 1;
            
            .ava{
                margin: .15rem auto;
                width: 30%;
                & > img{
                    width: 100%;
                }
                .foot_active{
                    color: #5522ab;
                }
            }
    
        }
    }
}